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This publicity photo provided courtesy of Toyo Ito and Associates, Architects, shows Japanese architect Toyo Ito, whose buildings have been praised for their fluid beauty and balance between the physical and virtual world. He has won the 2013 Pritzker Architecture Prize, the prize's jury announced Sunday, March 17, 2013. Ito, the sixth Japanese architect to receive the prize, is recognized for the libraries, houses, theaters, offices and other buildings he has designed in Japan and beyond. (AP Photo/Courtesy of Toyo Ito and Associates, Architects, Yoshiaki Tsutsui)

This publicity photo provided courtesy of Toyo Ito and Associates, Architects, shows Japanese architect Toyo Ito, whose buildings have been praised for their fluid beauty and balance between the physical and virtual world. He has won the 2013 Pritzker Architecture Prize, the prize's jury announced Sunday, March 17, 2013. Ito, the sixth Japanese architect to receive the prize, is recognized for the libraries, houses, theaters, offices and other buildings he has designed in Japan and beyond. (AP Photo/Courtesy of Toyo Ito and Associates, Architects, Yoshiaki Tsutsui)